Method for recycling artificial grass containing fibrous material

Abstract

The present invention relates to a method for recycling artificial grass containing fibrous material, and comprises: a supplying step for supplying the artificial grass comprising a base material, and a yarn; a separation step for separating the filler from the artificial grass yarn and the base material; and a crushing step for crushing the yarn and the base material of the artificial grass from which the filler is separated; and a reconstruction step for forming the artificial grass yarn and the base material that are crushed into recycled material. As a result, provided is the method for recycling the artificial grass containing the fibrous material, which can completely separate the filler and foreign material from the base material and the yarn that comprise the artificial grass and recycle the artificial grass yarn, base material, and the filler, thereby preventing environmental pollution.

1 . A recycling method of an artificial turf including a fiber structure, comprising:
 a supplying step of supplying an artificial turf configured by a base, a filler, and fibers;   a separating step of separating the filler from the fibers and the base of the artificial turf;   a crushing step of crushing the fibers and the base of the artificial turf from which the filler is separated; and   a reproducing step of forming the crushed fibers and base of the artificial turf as a recycled material.   
     
     
         2 . The recycling method of  claim 1 , wherein the filler is an elastic body, and the separating step includes an elastic body separating step of separating the elastic body from the artificial turf. 
     
     
         3 . The recycling method of  claim 1 , wherein the filler is a silica, and the separating step includes a silica separating step of separating the silica from the artificial turf. 
     
     
         4 . The recycling method of  claim 1 , wherein the filler is the elastic body and the silica, and the separating step includes an elastic body separating step of separating the elastic body from the artificial turf, and a silica separating step of separating the silica from the artificial turf. 
     
     
         5 . The recycling method of  claim 1 , further comprising:
 a collecting step of collecting the artificial turf from which the filler is separated.   
     
     
         6 . The recycling method of  claim 1 , further comprising:
 a residual filler removing step of removing a residual filler included in the crushed fibers and base of the artificial turf after the crushing step.   
     
     
         7 . The recycling method of  claim 6 , further comprising:
 an additional separating step of separating the elastic body and the silica in the filler removed in the residual filler removing step.   
     
     
         8 . The recycling method of  claim 7 , wherein the additional separating step is one selected from particle separation, gravity separation, and electrostatic separation methods or a combination thereof. 
     
     
         9 . The recycling method of  claim 1 , wherein the crushing step includes a cutting step of cutting the fibers and the base of the artificial turf, and a particle crushing step of crushing the cut fibers and base to particles. 
     
     
         10 . The recycling method of  claim 9 , further comprising:
 a particle separating step of separating residual filler particles of the particles included in the fibers and the base of the artificial turf which are crushed to the particles.   
     
     
         11 . The recycling method of  claim 10 , wherein the particle separating step is one selected from particle separation, gravity separation, and electrostatic separation methods or a combination thereof. 
     
     
         12 . The recycling method of  claim 8 , wherein the gravity separating method is one selected from wind power, dry cyclone, or wet cyclone, or a combination thereof, and the particle separating method is one selected from trommel and sieving separation method, or a combination thereof. 
     
     
         13 . The recycling method of  claim 6 , further comprising:
 a cleaning step of cleaning the fibers and the base of the artificial turf after the residual filler removing step; and   a drying step of drying the dried fibers and base of the artificial turf.   
     
     
         14 . The recycling method of  claim 13 , wherein the cleaning step includes a cleaning step of cleaning the crushed fibers and base of the artificial turf, and a foreign material removing step of removing a foreign material separated from the crushed fibers and base of the artificial turf in the cleaning step. 
     
     
         15 . The recycling method of  claim 14 , wherein the cleaning step is a step of cleaning the crushed fibers and base of the artificial turf in a cleaning bath where cleaning water is received, and the foreign material removing step is a step of removing a floating foreign material floated in the cleaning bath and a precipitated foreign material. 
     
     
         16 . The recycling method of  claim 13 , wherein the drying step is performed by at least one method selected from centrifugal dehydration drying, pressing dehydration drying, air spray drying, and hot wind drying. 
     
     
         17 . The recycling method of  claim 1 , wherein the reproducing step is a step of forming the crushed fibers and base of the artificial turf to a solid reproduction material by extrusion or injection. 
     
     
         18 . The recycling method of  claim 1 , further comprising:
 a filler reproducing step of forming the separated filler to the reproduction material.